def set_dummy_app():
"""
Return a context manager that makes sure that this dummy application is
active. This is important, because we need an `Application` with
`is_done=False` flag, otherwise no keys will be processed.
"""
app = Application(layout=Layout(Window()),
output=DummyOutput(),
input=create_pipe_input())
return set_app(app)
def set_dummy_app():
"""
Return a context manager that makes sure that this dummy application is
active. This is important, because we need an `Application` with
`is_done=False` flag, otherwise no keys will be processed.
"""
app = Application(
layout=Layout(Window()),
output=DummyOutput(),
input=create_pipe_input())
return set_app(app)
def _run_command(self, packet):
"""
Execute a run command from the client.
"""
create_temp_cli = self.client_states is None
if create_temp_cli:
# If this client doesn't have a CLI. Create a Fake CLI where the
# window containing this pane, is the active one. (The CLI instance
# will be removed before the render function is called, so it doesn't
# hurt too much and makes the code easier.)
pane_id = int(packet['pane_id'])
self._create_app()
with set_app(self.client_state.app):
self.pymux.arrangement.set_active_window_from_pane_id(pane_id)
with set_app(self.client_state.app):
try:
self.pymux.handle_command(packet['data'])
finally:
self._close_connection()
def remove_pane(self, pane):
"""
Remove a :class:`.Pane`. (Look in all windows.)
"""
assert isinstance(pane, Pane)
for w in self.windows:
w.remove_pane(pane)
# No panes left in this window?
if not w.has_panes:
# Focus next.
for app, active_w in self._active_window_for_cli.items():
if w == active_w:
with set_app(app):
self.focus_next_window()
self.windows.remove(w)
def remove_pane(self, pane):
"""
Remove a :class:`.Pane`. (Look in all windows.)
"""
assert isinstance(pane, Pane)
for w in self.windows:
w.remove_pane(pane)
# No panes left in this window?
if not w.has_panes:
# Focus next.
for app, active_w in self._active_window_for_cli.items():
if w == active_w:
with set_app(app):
self.focus_next_window()
self.windows.remove(w)
def active_window_for_app(app):
with set_app(app):
return self.arrangement.get_active_window()
def _create_app(self):
"""
Create `Application` instance for this .
"""
pymux = self.pymux
def on_focus_changed():
""" When the focus changes to a read/write buffer, make sure to go
to insert mode. This happens when the ViState was set to NAVIGATION
in the copy buffer. """
vi_state = app.vi_state
if app.current_buffer.read_only():
vi_state.input_mode = InputMode.NAVIGATION
else:
vi_state.input_mode = InputMode.INSERT
app = Application(
output=self.output,
input=self.input,
color_depth=self.color_depth,
layout=Layout(container=self.layout_manager.layout),
key_bindings=pymux.key_bindings_manager.key_bindings,
mouse_support=Condition(lambda: pymux.enable_mouse_support),
full_screen=True,
style=self.pymux.style,
on_invalidate=(lambda _: pymux.invalidate()))
# Synchronize the Vi state with the CLI object.
# (This is stored in the current class, but expected to be in the
# CommandLineInterface.)
def sync_vi_state(_):
VI = EditingMode.VI
EMACS = EditingMode.EMACS
if self.confirm_text or self.prompt_command or self.command_mode:
app.editing_mode = VI if pymux.status_keys_vi_mode else EMACS
else:
app.editing_mode = VI if pymux.mode_keys_vi_mode else EMACS
app.key_processor.before_key_press += sync_vi_state
app.key_processor.after_key_press += sync_vi_state
app.key_processor.after_key_press += self.sync_focus
# Set render postpone time. (.1 instead of 0).
# This small change ensures that if for a split second a process
# outputs a lot of information, we don't give the highest priority to
# rendering output. (Nobody reads that fast in real-time.)
app.max_render_postpone_time = .1 # Second.
# Hide message when a key has been pressed.
def key_pressed(_):
self.message = None
app.key_processor.before_key_press += key_pressed
# The following code needs to run with the application active.
# Especially, `create_window` needs to know what the current
# application is, in order to focus the new pane.
with set_app(app):
# Redraw all CLIs. (Adding a new client could mean that the others
# change size, so everything has to be redrawn.)
pymux.invalidate()
pymux.startup()
return app
def active_window_for_app(app):
with set_app(app):
return self.arrangement.get_active_window()
def _create_app(self):
"""
Create `Application` instance for this .
"""
pymux = self.pymux
def on_focus_changed():
""" When the focus changes to a read/write buffer, make sure to go
to insert mode. This happens when the ViState was set to NAVIGATION
in the copy buffer. """
vi_state = app.vi_state
if app.current_buffer.read_only():
vi_state.input_mode = InputMode.NAVIGATION
else:
vi_state.input_mode = InputMode.INSERT
app = Application(
output=self.output,
input=self.input,
color_depth=self.color_depth,
layout=Layout(container=self.layout_manager.layout),
key_bindings=pymux.key_bindings_manager.key_bindings,
mouse_support=Condition(lambda: pymux.enable_mouse_support),
full_screen=True,
style=self.pymux.style,
style_transformation=ConditionalStyleTransformation(
SwapLightAndDarkStyleTransformation(),
Condition(lambda: self.pymux.swap_dark_and_light),
),
on_invalidate=(lambda _: pymux.invalidate()))
# Synchronize the Vi state with the CLI object.
# (This is stored in the current class, but expected to be in the
# CommandLineInterface.)
def sync_vi_state(_):
VI = EditingMode.VI
EMACS = EditingMode.EMACS
if self.confirm_text or self.prompt_command or self.command_mode:
app.editing_mode = VI if pymux.status_keys_vi_mode else EMACS
else:
app.editing_mode = VI if pymux.mode_keys_vi_mode else EMACS
app.key_processor.before_key_press += sync_vi_state
app.key_processor.after_key_press += sync_vi_state
app.key_processor.after_key_press += self.sync_focus
# Set render postpone time. (.1 instead of 0).
# This small change ensures that if for a split second a process
# outputs a lot of information, we don't give the highest priority to
# rendering output. (Nobody reads that fast in real-time.)
app.max_render_postpone_time = .1 # Second.
# Hide message when a key has been pressed.
def key_pressed(_):
self.message = None
app.key_processor.before_key_press += key_pressed
# The following code needs to run with the application active.
# Especially, `create_window` needs to know what the current
# application is, in order to focus the new pane.
with set_app(app):
# Redraw all CLIs. (Adding a new client could mean that the others
# change size, so everything has to be redrawn.)
pymux.invalidate()
pymux.startup()
return app